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Finding the Fourth Proportional to 5,640.75, 8,460.99 and 2,353.77

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Solution

The fourth proportional to 5,640.75, 8,460.99 and 2,353.77 is: 3,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.75 : 8,460.99 = 2,353.77 : x
  2. Step 2: Convert to fraction form
    5,640.75/8,460.99 = 2,353.77/x
  3. Step 3: Cross multiply
    5,640.75x = 8,460.99 × 2,353.77
  4. Step 4: Simplify right side
    5,640.75x = 19,915,224.43
  5. Step 5: Solve for x
    x = 19,915,224.43/5,640.75
  6. Step 6: Final answer
    x = 3,530.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.